August weather forecastHayden, CO
August
Weather in August
August, the last month of the summer in Hayden, is also a moderately hot month, with an average temperature ranging between min 48.7°F (9.3°C) and max 78.1°F (25.6°C).Temperature
Upon the onset of August, Hayden witnesses an average high-temperature of a still moderately hot 78.1°F (25.6°C), showing a close resemblance to the prior month. A marked drop from daytime peak temperatures to an average low-temperature of 48.7°F (9.3°C) is observed during the nights in August in Hayden.Humidity
The least humid month is August, with an average relative humidity of 45%.Rainfall
The month with the least rainfall is August, when the rain falls for 9.2 days and typically collects 0.55" (14mm) of precipitation.Snowfall
In Hayden, snow does not fall in July and August.Daylight
In Hayden, Colorado, the average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 6:07 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm MDT.
Sunshine
In Hayden, the average sunshine in August is 11.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 5 suggests this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hayden, CO
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in August: 48.7°F
The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in August
Hayden, CO
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).
Average wind speed in August
Hayden, CO
- Average wind speed in August: 6.6mph
The windiest months (with the highest average wind speed) are April and June (7.1mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in August
Hayden, CO
- Average humidity in August: 45%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is August (45%).
Average rainfall in August
Hayden, CO
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in August
Hayden, CO
- Average rainfall days in August: 9.2 days
The months with the highest number of rainy days are April and May (12.3 days).
The month with the least rainy days is November (5 days).
Average snowfall in August
Hayden, CO
- Average snowfall in August: 0"
The month with the highest snowfall is January (11.34").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Hayden, CO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (16.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Hayden, CO
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 11h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in August
Hayden, CO
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is June (19.6 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in August
Hayden, CO
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in August
Hayden, CO
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are June, August and September (Cloud cover 13).
Average visibility in August
Hayden, CO
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
